Governor for windmills.



'No. 705,782; Patented July 29,1902.

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GOVERNOR FOR WINDMILLS.

(Applies-flea filed My 3, 1902.)

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N0. 705,782. Patented July 29, I902. C. F. UHLER.

GOVERNORFOB WINDMILLS.

(Application filed. May 3, 1902.)

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No. 705,782. Patented July 29, I902.

12. F; OHLER. A GOVERNOR FUR WINDMILLS.

(Application filed May 3,1902. V 3 Sheets-Sheet 3.

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UNiiED STATES PATENT OFFICE.

CAMEROh FRANKLING OI-ILER, OF EMMITTSBURG, MARYLAND.

GOVERNOR FOR WINDMIVLLS.

SPECIFTGATION forming part of Lette1;s Patent No. 705,782, dated July 29, 1902. Application and May 3.1902. Serial No. 105,324. on model.)

T0 at whom it may concern:

Be it known that I, CAMERON FRANKLING OHLER, a citizen of the United States, residing at Emmittsburg, in the county of Fred: erick and State of Maryland, have invented a new and useful Governor for Windmills, of which the following is a specification. I r

This invention relates generally to windmills or wind-wheels, and more particularly to an improved governor for wind-wheels for the purpose of regulating their speed.

The object of the invention is to provide a simple and efficient appliance'whichcan be: used in connection with a wind-wheel for the purpose of feathering the blades for the purpose of increasing or decreasing the speed of the wheel; and with this object in view the invention consists in the novel features of construction and combination, all of which will be fully described hereinafter, and point:

ed out in the claims.

In the drawings forming part of this specification, Figure lis a view, partly in section and partly in elevation, illustrating the general construction of my invention. Fig. 2 is a face view of the wheel, certain parts being shown in section. Fig. 3 is a diagrammatic view illustrating the operation of the governor. Fig. tis ahorizontal sectional view of the governor mechanism. Fig. 5 is a rear view of the wheel-hub. Fig. 6 is a sectional view of the same. Fig. *7 is a face view ofthe beveled gear arranged within the hub for the purpose of shifting the blades. Fig. 8 is a sectional view of the same. Fig. 9 is a detail perspective view showing one of the rackbars. Fig. 10 is a detail perspective view of one of the governor-arms.

Referring to the drawings, A indicates the usual construction of derrick, upon which is mounted the cap-plate B, havingball-bearing grooves within which are arranged the and carries a wheel G at theouter end, said wheel comprising a hub H, a rim 1, and the blades K. i The hub H has a tubular portion H, which fits upon the shaft E, and said hub alsohas an internally-toothed flange H with which meshes a pinionL, mounted upon the forward end of a shaft D so that as'the hub revolves the pinion is operated, driving the shaft D which communicates its motion to theshaft D through the medium of the gears D andD the blades K being pivotally connected tothe rim I by means of hinges K, and each blade has a shank K which is journaled to the front face of the hub, as shown at K and y the inner end of each shank has a mutilated the lugs H',projecting forwardly from the face of the hub, and connected to the ends of said extended shanks are the governor-arms their pivoted ends, which mesh with the rack portions 0 of the bars 0, which slide in the openings I-I", produced in the face of the hub, passing a considerable distance to the rear of the hub, and are surrounded by coil-springs 0 the normal tendency of said springs being to 'throw the bars rearwardly. A lever P, pivoted at P to one side of the casting C, bears at its forward end upon the connecting-plate O and has an operating-cord P connected to its rear end by means of which the lever can be forced against the connectingplate 0 for the purpose of forcing the rods 0 forwardly for the purpose of feathering the blades, a spring P bearing normally against the lever P and holding it out of contact.

.A weight N is adjustably mounted upon each governor-arm N, and these governorarms normally'rest parallel with and adja= cent to the wheel axle or shaftEL When the said governor-arms are in that position, the blades are turned so as to receive the wind; but should the wind become so strong as to drive the wheel at an excessive rate of speed the tendency would be for the arms to as sume a position transverse to the wheel-shaft,

N, having toothed segments N adjacent to and during such movement the toothed segments N would operate against the springactuated rack-bars 0. As the governor-arms assume a position at right angles to the wheelshaft or tend to assume such position they partially rotate the shanks to which they are connected, and this partial rotation of these shanks is communicated to all of the other shanks through the medium of the gear M and the mutilated gears K, so that all of the blades will be feathered or shifted, so as to present less surface to the face of the wind, and the speed of the wheel will be correspondingly red-need, and as the speed of the wheel becomes normal the spring-actuated rackbars acting upon the toothed segments will cause the governor-arms to assume their normal positions.

It will thus be seen that I provide an exceedingly simple and highly -efficient construction of windmill regulator or governor.

Having thus fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is

1. A Windmill-governor comprising in combination a wheel having a series of independently-movable blades, means contained within the hub of the wheel for simultaneously shifting the said blades, governor-arms arranged substantially parallel with the Wheel-shaft connected directly to two of the blades and adapted to operate the means for shifting allot the blades together with spring actuated means for returning all of the parts to their normal positions, substantially as.

specified.

2. In a Windmill-governor, a wheel comprising a hub and rim, a series of blades hinged to the rim andhaving shanks pivotally connected to the hub, the governor-arms connected to two of the shanks, the mutilated gears carried by all of the shanks, the gearwheel adapted to mesh with said mutilated gears, and the spring-actuated device connected to the governor-arms for returning them to their normal positions, substantially as described.

3. A wind-wheel governor comprising in combination a wheel-hub, the blades, rim and shanks,mutilated gears carried by the shanks, the gear-Wheel arranged within the hub and adapted to mesh with said mutilated gears, the spring-actuated rack-bars extending 1ongitudinally through the hub, the governorarms connected to two of the shanks, and

meshing with the said rack-bars, and a lever adapted to operate the spring-actuated rackbars, for the purposespecified.

4. The combination with a derrick and casting, of the wheel-shaft journaled in the casting, the hub mounted upon said wheelshaft, the said hub having the internallytoothed flange, the pinion meshing with said flange, the shaft carrying said pinion journaled in the casting and provided with a beveled gear, the vertical shaft having abeveled gear meshing with theaforesaid beveled gear, the wheel-rim, the blades hinged to the said rim, shanks attached to the blades and journaled upon the hub, the governor-arms attached to two of the said shanks, the mutilated gears arranged upon the inner ends of all the shanks, the gear wheel mounted loosely upon the wheel-shaft within the hub and adapted to mesh with the said-mutilated gears, the rack-bars extending through the hub, the toothed segments carried by the governor-arms, and adapted to mesh with the A rack-bars, the springs surrounding said bars, the connecting-plate, the lever adapted to press against said plate, and means for operating the said lever for the purpose specified.

CAMERON FRANKLING OHLER. Witnesses:

J. lVIAURICE NUSSEAR, J OHN D. ELDER. 

